Nut-lock.



- WITNESSES B. G. PATTERSON.

NUT LOOK. APPLICATION FILED MAR. 15. 1912 1,042,962, Patented @0529, 1912.

m'romvtrs OFFICE BENJAMIN GILBERT PATTERSON, or oKLj uroMA, QKLAHOMA, AssIGNceoF 01mroua'rn mo uacon DANIEL ,OLIGER, OFUDALLAS, rnxnsama one-rover TO THOMAS BROWNSIMMS an]; ONE-TENTH 'ro JAMES'DANIEL ZDEU FREE, torn or .FiKLAflvmA, OKLAHOMA i J Specification of Letters Patent.

1 p, NUT-LOCK.

Patenteddct. 29,1912.

Application fi eajmar his, 1 912. Serial No. 683,933.

To all who'mfit may comm.-

Be it known that I, BENJAMIN G. PATTER- SON, a citizen of the United States, \and a resident of Oklahomacity, in the county of 5 Oklahoma and State of- Oklahoma, have in- :Vented an Improvement in Nut-Locks, of which thefollowing is a specification.

iMy-invention is an improvement in that qclalss of nut-locks inwhich a dog or looking l o device' is arranged'in a slot orrecess in the "rnut ;and -adapfed, when in a certain posi- :ngitge thethread of. the bolt, and fa. reverse. or opposite position, 1s out5 age ement therewith.

iind 'coinbination'of parts are ashereinafter describediandillustrated in the accompany- .in%dr.wing, in,which olt proyided withmy improved lock- ,viejw representing the' 'same parts applied .usel Fig; 3 isfacross"section, of a ibo ltand hutshowin :thedog or locking -flde'vice thenon-loc 'ng'positio'n; Fig.4 a'pers ectiye view of; the dog or looking igISshows a cross section of the .device.

bolt with the/slot afid'. dog arranged therein, this: being a odification {of the usual argrangement. .6, 7, and 8 arediagrammatic views illustratin the diflerent pos "'tions of the dog or 100 ing device. Fig. 9 is a view illustrating-the .dog or looking device'ap'plied to a stud bolt. p

In .Figs. 1',T2,'and 3, a but 1 is shown 85 1s v arranged a' locking device or dog3. The latter-has practically the, forinof a scalene trian le'," in cross section, one corner of the base angled see especially Figs. 6, 7 and 8 and its biting edge is preferably serrated or notched to adapt itto conform to thethread ofthe bolt 4 -to-which the nut 1 is shown applied. The bottom of the slot. 2-see vcrurn for the do .3 on, which the vlatterzis adapted. to-rock 1nassuming. dlfierent'posl- .tions, as illustrated in Figs. 6, 7 ,and 8. 7 On seesaw gem-is of construction, arrangement,-

lriy-a perspective view of a nut jig-device; F ig. 2 [is flan. enlarged sectional provided with' a transverse slot 2 inwhich eing acute-angled andthe other-rightf especially Figs. 6, 7, and fs0 formed as to describe an obtuse angle in' cross SGCtlOIl, the apex 4 of the angle, constitutinga fulthe inner acute angle of the dog enters and bears in this angle of, the slot bottom when the dog 1s engaged with the thread of the bolt, asshown in Figs. 7 and 8. i

=I n F1g.' 6, the dog 8 is shown, 3, 1n the non-locking position, its point not touching the thread of the bolt. In Fig. 7, the dog is shown as having rocked on its fulcrum 4.- and become engaged with the thread: of the bolt. In Fig. 8, the engagement 1s shown complete, the acute outer angle '3 of the dog being engaged in the lowest portion, of the slot and the pointand the bltmg edge of the'dog deeply engaging the thread of the bolt; ,It will be understood, however, that owing to the serratlons-or notches in the biting'edge of the dog, the thread of the bolt is not distorted, but the biting edge is extended as deeply as possible into the thread, so that a locking engagement results.

I-n Figs. 3 and 5, ,thleslot 2 is shown provlded "with a-iateral' recess 2 which permits the introduotionof' a nail or other small" Instrument, by which the dog may be shifted to the non-locking position when it is desired to detach the'nut.

In Fig. 5, I show a modification in which I I aslot 2? .is formed in the bolt instead of "the nut, and the dog 3 is consequently adapted to bite into the thread of the' nut nstead of into the thread of the bolt as in v the other instances already described. It

will, therefore, be understood thatI may adopt either arrangement of the dog; that is to say, in a slot in the nut or in a slot in the bolt, as the case maybe.

In Fig. 9, I show a dog-fitted into a slot in a studf bolt 5, said slot extending from the end ofthe bolt past the'thread of the same and beyondthe surface of the part.

into which the bolt' is screwed. Thus a space is left between the dog and" the inner -end of the slot, which permitsthe inser-, tion of a pointed instrument for-- unlocking the dog and thus enabling the bolt to be I removed.

What I claim is k receivesjsaid doggtlielbottom of the slot-hav- 1.'.The: combination of'atriangular do 7 witha threadedjbolt and a nut applie "thereto andhaviiigiga lengthwise slot which as in Fig. I

rests and is adapted to rocklaterally, as deits inner acute. angle bein arranged to enscribed. gage in the deeper side oi the angular slot 10 2. The combination with a screw bolt and bottom, as descrlbed. a nut having a radial lengthwise slot whose 5 bottom is formed as an obtuse angle, one BENJAMIN GILBERT PETERSON side of the angular bottom being deeper \Vitnesses: than the other of a dog having in cross MORA C. CLARK,

section the form of a scalene triangle and JAS. D. DEU PREE. 

